Answer Posted / jitendra

Answer
# 1 A hard link cannot span file systems; it can only point
to
another file located within its file system. The reason is
that hard links all share an inode number. Each file system
has its own set of inode numbers; therefore, a file with
inode number 3588 in the /export/home file system may not
even exist in the /var file system.
You cannot create a hard link unless the source file
already exists.

Symbolic links are used for shortcuts.Symbolic links can
point to files anywhere on the network. The file or
directory could exist in another file system, on another
disk, or on another system on the network.

Another advantage of symbolic links over hard links is that
a symbolic link can link directories or files, whereas a
hard link can link only files

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